Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh RB Bate Pastorelli and Pillischer were just

Pastorelli and Pillischer were just a few of the recognisable names

The lower half of the dial has a curved thermometer with scale divided for 20-160 degrees of Fahrenheit

It was my aim to portray that most fascinating of instruments – the barograph – using illustrations as examples of the many different types still available

having not taken enough notice of the falling barometer

Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh RB Bate Pastorelli and Pillischer were justFor sale, a cased George IV altazimuth theodolite by Alexander Adie of Edinburgh. This rare example is comprised of a horizontal five inch divided circle which is coarse adjusted by hand and then finely adjusted by means of a knurled brass knob attached to top. The centre contains an expertly engraved and silvered compass with a small brass cam to the side of the case, to hold or release the movement. Two sides of the outer edge of the base are also